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Finding the Fourth Proportional to 703,504.88, 970,884.36 and 397,475.12

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Solution

The fourth proportional to 703,504.88, 970,884.36 and 397,475.12 is: 548,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,504.88 : 970,884.36 = 397,475.12 : x
  2. Step 2: Convert to fraction form
    703,504.88/970,884.36 = 397,475.12/x
  3. Step 3: Cross multiply
    703,504.88x = 970,884.36 × 397,475.12
  4. Step 4: Simplify right side
    703,504.88x = 385,902,377,497.12
  5. Step 5: Solve for x
    x = 385,902,377,497.12/703,504.88
  6. Step 6: Final answer
    x = 548,542.57

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.